SIGH. I don't think you could have missed the point any more than you managed to.
First, I'm PRETTY sure carnivore is always going to have the same meaning. Second, I hate to disappoint you or the urban dictionary but 'veggist' is not a word

And while your cat may enjoy the taste of olives, it does not derive any vital nutrients necessary to its survival.
Biologically, humans are not carnivores. We do not require meat to derive all our nutrients. (We do not, in fact, require any meat at all.) However our current diet would be described as omnivorous. It has nothing to do with language police or purists, it's about using the accurate words, which is what intelligent people usually do because it makes communication with others a lot easier.
But I did not correct your use of the word carnivore to be the language police. If you'd watched the video, or at least followed the link I included, it would have become clear to you that I wasn't talking about biology and carnism has nothing to do with carnivores or omnivores.
Since that appears to be too much effort for you, here's a short explanation you would have found on the page I linked to:
" What Is Carnism?
Carnism is the invisible belief system, or ideology, that conditions people to eat certain animals. Carnism is essentially the opposite of veganism; “carn” means “flesh” or “of the flesh” and “ism” denotes a belief system. Most people view eating animals as a given, rather than a choice; in meat-eating cultures around the world people typically don’t think about why they find the flesh of some animals disgusting and the flesh of other animals appetizing, or why they eat any animals at all. But when eating animals is not a necessity for survival, as is the case in much of the world today, it is a choice - and choices always stem from beliefs."
" Omnivore, Carnivore, and Vegetarian: Inaccurate Terms
Just as "meat eater" is an inaccurate and misleading phrase to describe those who are not vegetarian or vegan, so, too, are the other commonly used terms, "omnivore" and "carnivore." These terms reinforce the assumption that eating animals is natural, one of the most entrenched and compelling myths used to justify carnism.
"Omnivore" and "carnivore" describe one's physiological disposition, rather than one's ideological choice: an omnivore is an animal, human or nonhuman, that can ingest both plant and animal matter, and a carnivore is an animal that needs to ingest flesh in order to survive."
Hopefully this clarifies things for you. For further information, I encourage you to browse the website or watch the video I kindly included in the original post.